what is an organic unknown that is negative for the chromic acid test, positive for the...
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what is an organic unknown that is negative for the chromic acid
test, positive for the...
EXPERIMENT 6 (Organic Chemistry II). Qualitative Analysis of Ketones and Aldehydes REPORT FORM Name Instructor Date...
EXPERIMENT 6 (Organic Chemistry II). Qualitative Analysis of Ketones and Aldehydes REPORT FORM Name Instructor Date Part I. Reaction with nitrogen compounds (DNP) a) Benzaldehyde: b) Methyl ethyl ketone: c) Unknown Part II. Chromic Acid Test - Oxidation with Jones' Reagent a) Propionaldehyde: b) Acetone: c) Methyl ethyl ketone: ketone d) Unknown: Part III. Tollens' Test - Tollens Silver Mirror Test for Aldehydes a) Propionaldehyde: b) Benzaldehyde: c) Methyl ethyl ketone: d) Unknown: Part IV. Iodoform test for Methyl Ketones...
My dnp test result was bright orange solid tollens result was clear chromic acid was orange iodo...
my dnp test result was bright
orange solid
tollens result was clear
chromic acid was orange
iodoform was
clear/yellowish
i believe my unknown is ketone
but im not sure
I. Circle the letter that best describes your unknown. a. Aliphatic aldehyde b. Aromatic aldehyde c. Ketone II. Which of the above possibilities best describes the flavoring agent? III. Check below if a CH,-C- group is present in b. the flavoring agent. a. your unknown Questions 1. Which of the following...
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown...
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown yields a positive Jones test. Which of these could be the unknown? (Multiple answers possible) 2pts o 엉 ㅇ A B C D 14) An unknown yields a positive DNPH test and a negative Tollens test. Which of these is the unknown? 2pts H . مرز A D С B 15) What tests would be positive for the following molecule? 2pts i. H
unknown solid organic chemistry 2 experiment, please help in determining my solid Here's my data so...
unknown solid organic chemistry 2 experiment, please help in determining my solid Here's my data so far, I'll be continuing next week: -Melting point of the unknown is 209-215 degrees C -Solid unknown itself is a white crushed powder with a strong smell -Insoluble in 5% NaOH, Water, 5% HCl but soluble in H2SO4 and 95% ethanol -Negative DNPH test with no precipitate -Positive chromic acid test with a green precipitate So i'm thinking i received a borneol compound. How...
Please include the following information allow with the molecular structure of the unknown compound: 1. IR-Include...
Please include the following information allow with the
molecular structure of the unknown compound:
1. IR-Include the major peaks and indicate the stretch
wavenumber and what bond it is.
2. UV-VIs- If there is a lambda max given, please briefly
indicate what structural element is contributing to it.
3. HNMR-Include proton label, chemical shift, multiplicity, and
integration.
4. CNMR- include the carbon label and the chemical shift.
Some additional information about the unknown compound:
Iodoform Test: Clear solution
Chromic Acid...
An unknown substance had a positive reaction with 2,4-DNP test. The unknown reacted like a secondary...
An unknown substance had a positive reaction with 2,4-DNP test. The unknown reacted like a secondary alcohol with the Lucas reagent. It was negative with the Iodoform and Benedict's test. What possible functional groups does the unknown contain? -primary alcohol -secondary alcohol -tertiary alcohol -ketone -aldehyde -methyl -none tested I answered ketone and aldehyde. I did not receive full credit. I also answered secondary, tertiary, ketone, and acetone, but did not receive full credit.
Hi I just need a little help breaking down some information. I have an unknown, which...
Hi I just need a little help breaking down some information. I have an unknown, which i distilled on a microscale. The boiling point I got was 102 C. I performed a DNPH test which came back negative so its not an aldehyde or ketone, also a chromic acid was positive for a primary or secondary alcohol, and potassium permanganate negative for alkene or alkyne. My IR came back with 3 sp3 C-H peaks an O-H and C-O. The possible...
What is the empirical and molecular formula ? What is the molecular weight ? omputer Unknown...
What is the empirical and molecular formula ? What is the
molecular weight ?
omputer Unknown #10 Physical Properties MP48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sedium fi ltrate was treated with and heated. It was then acidified wit was noticed rate was treated with ferrous sulate o acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with te observable change was noticed. on...
5) You have been given an unknown that gives a positive 2,4-dinitrophenylhydrazine test. a) What does...
5) You have been given an unknown that gives a positive 2,4-dinitrophenylhydrazine test. a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the unknown's identity? c) What would you see in the subsequent tests, and what would your observations tell you about the identity of the unknown?
4. An unknown organic acid contains only carbon, hydrogen, and oxygen. Use the combustion analysis data...
4. An unknown organic acid contains only carbon, hydrogen, and oxygen. Use the combustion analysis data below to determine the empirical formula for the unknown organic acid Mass of unknown organic acid combusted :403 mg Mass of CO2 recovered: 845 Mass of H2O recovered :173 mg 250.0 mg of the same unknown organic acid is used in a titration, where 7.51 mL of 0.198 M NaOH were needed to reach the equivalence point. Determine the molar mass, and molecular formula,...
EXPERIMENT 6 (Organic Chemistry II). Qualitative Analysis of Ketones and Aldehydes REPORT FORM Name Instructor Date Part I. Reaction with nitrogen compounds (DNP) a) Benzaldehyde: b) Methyl ethyl ketone: c) Unknown Part II. Chromic Acid Test - Oxidation with Jones' Reagent a) Propionaldehyde: b) Acetone: c) Methyl ethyl ketone: ketone d) Unknown: Part III. Tollens' Test - Tollens Silver Mirror Test for Aldehydes a) Propionaldehyde: b) Benzaldehyde: c) Methyl ethyl ketone: d) Unknown: Part IV. Iodoform test for Methyl Ketones...
my dnp test result was bright
orange solid
tollens result was clear
chromic acid was orange
iodoform was
clear/yellowish
i believe my unknown is ketone
but im not sure
I. Circle the letter that best describes your unknown. a. Aliphatic aldehyde b. Aromatic aldehyde c. Ketone II. Which of the above possibilities best describes the flavoring agent? III. Check below if a CH,-C- group is present in b. the flavoring agent. a. your unknown Questions 1. Which of the following...
12) What test lets you tell between an aldehyde and a ketone? 2pts 13) An unknown yields a positive Jones test. Which of these could be the unknown? (Multiple answers possible) 2pts o 엉 ㅇ A B C D 14) An unknown yields a positive DNPH test and a negative Tollens test. Which of these is the unknown? 2pts H . مرز A D С B 15) What tests would be positive for the following molecule? 2pts i. H
Please include the following information allow with the
molecular structure of the unknown compound:
1. IR-Include the major peaks and indicate the stretch
wavenumber and what bond it is.
2. UV-VIs- If there is a lambda max given, please briefly
indicate what structural element is contributing to it.
3. HNMR-Include proton label, chemical shift, multiplicity, and
integration.
4. CNMR- include the carbon label and the chemical shift.
Some additional information about the unknown compound:
Iodoform Test: Clear solution
Chromic Acid...
What is the empirical and molecular formula ? What is the
molecular weight ?
omputer Unknown #10 Physical Properties MP48-51 °C White solid C = 48.27% H=3.54% Sodium Fusion Test A portion of the sedium fi ltrate was treated with and heated. It was then acidified wit was noticed rate was treated with ferrous sulate o acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with te observable change was noticed. on...
5) You have been given an unknown that gives a positive 2,4-dinitrophenylhydrazine test. a) What does this positive 2,4 DNP test indicate? b) What subsequent tests could you run to be more specific about the unknown's identity? c) What would you see in the subsequent tests, and what would your observations tell you about the identity of the unknown?
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